Problem & answerG-04
Main Motor Failure
Likely causes
- Winding failure
- Overheating
- Bearing failure
- Electrical fault or phase loss
- Mechanical overload
How to fix it
- 1Stop the machine and isolate power.
- 2Check motor temperature.
- 3Inspect wiring and measure supply voltage.
- 4Check bearings and cooling fan.
- 5Repair or replace the motor and carry out a rotation test.
It is fixed when
Motor runs smoothly under normal load.
Stop it coming back
- Check motor temperature weekly.
Did this solve the problem?